/Engine/Plugins/Runtime/MeshModelingToolset/Source/MeshModelingTools/Public/ToolActivities/PolyEditCutFacesActivity.h
This should get emitted when setting the first point so that we can undo it.
class FPolyEditCutFacesActivityFirstPointChange : public [FToolCommandChange](API\Runtime\InteractiveToolsFramework\FToolCommandChange)
int32
ActivityStamp
bool
bHaveDoneUndo